Multicast

R1  va a ser el server
R5 cliente

En todos los routers vamoa a habilitar multicast y vamos a configurar al router R3 como servidor para sparse-mode
R1(config) ip multicast-routing
R1(config) ip pim rp-address 3.3.3.3

En todas las interfaces vamos a activar el pim sparse-mode
R1(config-if) ip pim sparse-mode

Para configutraciion de un cliente ( para hacer pruebas) en la interface f0/0 de R5
R5(config-if)#ip igmp join-group 225.5.5.5



Para la verificacion vamos  a usar los comandos:
  R2#sh ip pim interface

Address          Interface                Ver/   Nbr    Query  DR     DR
                                          Mode   Count  Intvl  Prior
192.168.10.2     FastEthernet0/0          v2/S   1      30     1      192.168.10.2
10.10.10.9       Serial1/3                v2/S   1      30     1      0.0.0.0
10.10.10.1       Serial1/0                v2/S   1      30     1      0.0.0.0
R2#
 R2#SH ip pim rp mapping
PIM Group-to-RP Mappings

Group(s): 224.0.0.0/4, Static
    RP: 3.3.3.3 (?)
R2#
############################################################
 Mostrar la rutas multicast
###########################################################
R1#sh ip mrouteIP Multicast Routing Table
Flags: D - Dense, S - Sparse, B - Bidir Group, s - SSM Group, C - Connected,
       L - Local, P - Pruned, R - RP-bit set, F - Register flag,
       T - SPT-bit set, J - Join SPT, M - MSDP created entry,
       X - Proxy Join Timer Running, A - Candidate for MSDP Advertisement,
       U - URD, I - Received Source Specific Host Report,
       Z - Multicast Tunnel, z - MDT-data group sender,
       Y - Joined MDT-data group, y - Sending to MDT-data group
Outgoing interface flags: H - Hardware switched, A - Assert winner
 Timers: Uptime/Expires
 Interface state: Interface, Next-Hop or VCD, State/Mode

(*, 225.5.5.5), 00:00:04/stopped, RP 3.3.3.3, flags: SP
  Incoming interface: FastEthernet0/0, RPF nbr 192.168.10.2
  Outgoing interface list: Null

(192.168.10.1, 225.5.5.5), 00:00:04/00:03:25, flags: PT
  Incoming interface: FastEthernet0/0, RPF nbr 0.0.0.0
  Outgoing interface list: Null

(*, 224.0.1.40), 00:13:22/00:02:07, RP 3.3.3.3, flags: SJPL
  Incoming interface: FastEthernet0/0, RPF nbr 192.168.10.2
  Outgoing interface list: Null

R1#
R1#ping 225.5.5.5

Type escape sequence to abort.
Sending 1, 100-byte ICMP Echos to 225.5.5.5, timeout is 2 seconds:

Reply to request 0 from 192.168.20.2, 600 ms